Poison front man Bret Michaels has suffered another health set-back. The "Celebrity Apprentice" star experienced a small "warning stroke" this week, and after being hospitalized, doctors found a hole in his heart, People reports.

Michaels' rep says the singer was complaining about "numbness on the left side of his body, predominately his face and hands," according to a report from TMZ.

Doctors say that his condition is "operable and treatable" and that this new occurrence is not believed to be related to his brain hemorrhage last month.

Michaels had begun treatment in outpatient care as of Friday, the Associated Press confirmed, adding that Michaels' publicist, Joann Mignano, gave no other details about his condition to the news outlet in her email message.

Yesterday, Michaels' rep told TMZ that the "Rock of Love" star is in "good spirits, great medical hands and is positive and hopeful that everything is going to be OK. He is up, walking, talking, continuing his daily rehab and very happy to be alive but he has made it clear he is sick and tired of being in the hospital and is ready to rock again."

And he still intends to make it to the "Celebrity Apprentice" finale on Sunday, according to HollywoodLife.com.

"We are cautiously optimistic that he will attend," his rep told the Web site, adding that Michaels is still booked to appear on New York shows including "Today," "Regis and Kelly," and "Jay Leno" next week.